[llvm] [PowerPC][GlobalISel] Remove dependency on legal ruleset (PR #197375)

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llvmorg-github-actions[bot] wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-powerpc

Author: David Green (davemgreen)

<details>
<summary>Changes</summary>

This fills in always legal rules, to remove the dependency on the legacy ruleset. This is not guaranteed to be all the rules, just the ones that appear in tests.

---
Full diff: https://github.com/llvm/llvm-project/pull/197375.diff


1 Files Affected:

- (modified) llvm/lib/Target/PowerPC/GISel/PPCLegalizerInfo.cpp (+5) 


``````````diff
diff --git a/llvm/lib/Target/PowerPC/GISel/PPCLegalizerInfo.cpp b/llvm/lib/Target/PowerPC/GISel/PPCLegalizerInfo.cpp
index afc8f6bbde1b7..40d61f33c94b1 100644
--- a/llvm/lib/Target/PowerPC/GISel/PPCLegalizerInfo.cpp
+++ b/llvm/lib/Target/PowerPC/GISel/PPCLegalizerInfo.cpp
@@ -84,5 +84,10 @@ PPCLegalizerInfo::PPCLegalizerInfo(const PPCSubtarget &ST) {
   getActionDefinitionsBuilder(G_FCONSTANT).lowerFor({S32, S64});
   getActionDefinitionsBuilder(G_CONSTANT_POOL).legalFor({P0});
 
+  getActionDefinitionsBuilder(G_BR).alwaysLegal();
+
+  getActionDefinitionsBuilder({G_INTRINSIC, G_INTRINSIC_W_SIDE_EFFECTS})
+      .alwaysLegal();
+
   getLegacyLegalizerInfo().computeTables();
 }

``````````

</details>


https://github.com/llvm/llvm-project/pull/197375